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10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax :925-798-1622 <br /> http://www.mccampbell.co E-mail:main@mccampbell.com <br /> Date Sampled: 09/10/98 <br /> Advanced GeoEnviromnental Client Project ID: Geweke <br /> Date Received: 09/11/98 <br /> 4005 North Wilson Way <br /> Stockton,CA 95205 Client Contact: Kevin McKibben Date Extracted: 09/11-09115/98 <br /> Client P.O: Date Analyzed: 09/11-09/15/98 <br /> Oxygenated Volatile Organics By GC/MS <br /> EPA method 8260 modified <br /> Lab ID 94792 94793 94794 <br /> MW l i/9-10- M W 1219-10- M W 14/9-10- Reporting Limit <br /> Client 1D 98 98 98 <br /> Matrix W W W $ W <br /> Compound Concentration* ug/kg uglL <br /> Di-isopropyl Ether(DIPE) ND ND ND 5.0 1.0 <br /> Ethyl tert-Butyl Ether(ETBE) ND ND ND 5.0 1.0 <br /> Methyl-tert Buty]Ether(MTBE) ND ND ND 5.0 1.0 <br /> tert-Amyl Methyl Ether(TAME) ND ND ND 5.0 1.0 <br /> tert-Butanol 11 ND ND 25 5.0 <br /> Surrogate Recoveries('%) <br /> Dibromofluoromethane 96 101 99 <br /> Comments: <br /> *water samples are reported in ug/L,soil and sludge samples in ug/kg,wipes in ughvipe and all TCLP/STLC 1 SPLP extracts in ug1L <br /> ND means not detected above the reporting limit;NIA means surrogate not applicable to this analysis <br /> (h)lighter than water immiscible sheen is present;(i)liquid sample that contains greater than—5 vol.'%,sediment;(j)sample diluted due to <br /> high organic content <br /> DHS Certification No. 1644 ///—Edward Hamilton, Lab Director <br /> • <br />